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A kind of titanium and titanium alloy pre-plating solution and electroplating method

A technology of titanium alloy and pre-plating solution, applied in the fields of titanium and titanium alloy pre-plating solution and electroplating, metal plating solution and electroplating, can solve problems such as containing cyanide, increase bonding force, solve allergies and environmental pollution caused by cyanide , the effect of reducing pitting

Inactive Publication Date: 2011-11-30
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing titanium and titanium alloy plating solution contains the defects of prohibited nickel and highly toxic cyanide, thereby providing a cyanide-free and nickel-free titanium and titanium alloy plating solution and electroplating method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Mechanical polishing

[0029] Titanium alloy Gr1 pre-treatment: Use a button cloth wheel combined with a small wool wheel polishing method to remove burrs, oxide scales, etc. generated by the raw material itself during the die-casting process, and reduce surface roughness.

[0030] 2) Ultrasonic wax removal

[0031]The titanium alloy treated in step (1) was dewaxed, and the dewaxing water was PF-160C dewaxing water from Pengfeng Yuye Technology Co., Ltd., the concentration of the tank was 30ml / L; the temperature was 65°C, and the time was 5min.

[0032] 3) Cathodic electrolytic degreasing

[0033] The titanium alloy treated in step (2) is subjected to cathodic electrolytic degreasing. The cathodic electrolytic degreasing adopts the PF-514 cathodic degreasing powder of Pengfeng Yuye Technology Co., Ltd., and the opening volume is 50g / L; the temperature is 65°C; the current Density 5A / dm 2 ; Time 1min.

[0034] 4) Anode electrolytic degreasing

[0035] The titaniu...

Embodiment 2

[0051] 1) Mechanical polishing

[0052] Titanium alloy ZTi1 pre-treatment: use a button cloth wheel combined with a small wool wheel polishing method to remove burrs, scale, etc. generated by the raw material itself during the die-casting process, and reduce the surface roughness.

[0053] 2) Ultrasonic wax removal

[0054] The titanium alloy treated in step (1) was dewaxed, and the dewaxing water was PF-160C dewaxing water from Pengfeng Yuye Technology Co., Ltd., the concentration of the tank was 30ml / L; the temperature was 65°C, and the time was 5min.

[0055] 3) Cathodic electrolytic degreasing

[0056] The titanium alloy treated in step (2) is subjected to cathodic electrolytic degreasing. The cathodic electrolytic degreasing adopts the PF-514 cathodic degreasing powder of Pengfeng Yuye Technology Co., Ltd., and the opening volume is 50g / L; the temperature is 65°C; the current Density 5A / dm 2 ; Time 1min.

[0057] 4) Anode electrolytic degreasing

[0058] The titanium...

Embodiment 3

[0074] 1) Mechanical polishing

[0075] Titanium alloy TC1 pre-treatment: Use a button cloth wheel combined with a small wool wheel polishing method to remove the burrs and oxide scales produced by the raw material itself during the die-casting process and reduce the surface roughness.

[0076] 2) Ultrasonic wax removal

[0077] The titanium alloy treated in step (1) was dewaxed, and the dewaxing water was PF-160C dewaxing water from Pengfeng Yuye Technology Co., Ltd., with a concentration of 30ml / L in the tank; the temperature was 65°C, and the time was 5min.

[0078] 3) Cathodic electrolytic degreasing

[0079] The titanium alloy treated in step (2) is subjected to cathodic electrolytic degreasing. The cathodic electrolytic degreasing adopts the PF-514 cathodic degreasing powder of Pengfeng Yuye Technology Co., Ltd., and the opening volume is 50g / L; the temperature is 65°C; the current Density 5A / dm 2 ;Time lmin.

[0080] 4) Anode electrolytic degreasing

[0081] The ti...

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Abstract

The invention provides a titanium and titanium alloy pre-plating solution. The pre-plating solution includes sodium gold sulfite, a conductive salt, a complexing agent, a brightener and a pH buffer; the pH of the electroplating solution is 9-11. The present invention also provides a method for electroplating titanium and titanium alloys, which includes placing titanium and titanium alloys in a pre-plating solution for pre-plating and then electroplating cyanide-free cupronickel tin; wherein the pre-plating solution is the The pre-plating solution. The present invention replaces pre-nickel plating with cyanide-free pre-plating gold, increases the bonding force between titanium and titanium alloys and the coating, reduces pitting, and uses the cyanide-free white copper-tin system to replace the commonly used nickel plating process to solve the human body's allergy to nickel. Cyanide pollutes the environment.

Description

technical field [0001] The invention relates to a metal electroplating solution and an electroplating method, in particular to a titanium and titanium alloy pre-plating solution and an electroplating method, belonging to the technical field of metal surface treatment. Background technique [0002] Titanium is a new metal in the 21st century after steel, aluminum and magnesium. Since the development of titanium as a structural metal in the 1950s, more and more countries in the world have recognized the importance of titanium alloys, successively carried out research and development on them, and have been well applied in many fields. The appearance of titanium is similar to steel, silver-gray and shiny. The main characteristics of titanium alloy are high melting point, high tensile strength, high hardness, strong plasticity, low density and high specific strength; titanium of the same quality is stronger and more durable than aluminum and steel; non-toxic, non-magnetic, high ...

Claims

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Application Information

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IPC IPC(8): C25D5/28C25D5/38
Inventor 孙继鹏李爱华罗鹏
Owner BYD CO LTD
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